It kinda depends on where you hunt. I'm in Ca. and we don't get much swamp land around here. I recently returned to hog hunting after a long lay off, but if it's been dry, just look for a year round water source. Then, when you find the water, you will probably find the trails that tree climber was talking about. In the early morning, set up around the water hole. If that doesn't produce, then follow the trails and look for fresh off shoot trails. This might lead to bedding. In Ca. they love chapparel bush. They tend to follow it almost everywhere they go. It can get thick, but if you jump them, they will spring to open ground. In my experience, much like most animals, if you can't find water (especially in dry months) you won't find game. Good luck, if you post your location, people in your area would probably jump in with their tactics.